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IT import: implement default pan

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tildearrow 2024-07-14 02:44:50 -05:00
parent 871c260bc1
commit 71e052d740
1 changed files with 21 additions and 6 deletions
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27
src/engine/fileOps/it.cpp
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@ -181,6 +181,8 @@ bool DivEngine::loadIT(unsigned char* file, size_t len) {
unsigned short patLen[256];
unsigned char defVol[256];
unsigned char defPan[256];
unsigned char defPanIns[256];
unsigned char noteMap[256][128];
bool doesPitchSlide[64];
@ -210,6 +212,8 @@ bool DivEngine::loadIT(unsigned char* file, size_t len) {
memset(patLen,0,256*sizeof(unsigned short));
memset(defVol,0,256);
memset(defPan,0,256);
memset(defPanIns,128,256);
memset(noteMap,0,256*128);
try {
@ -436,9 +440,7 @@ bool DivEngine::loadIT(unsigned char* file, size_t len) {
reader.readC();
insVol=reader.readC();
unsigned char defPan=reader.readC();
logV("defPan: %d",defPan);
defPanIns[i]=reader.readC();
// vol/pan randomization
reader.readC();
@ -572,9 +574,7 @@ bool DivEngine::loadIT(unsigned char* file, size_t len) {
s->name=reader.readStringLatin1(26);
unsigned char convert=reader.readC();
unsigned char defPan=reader.readC();
logV("defPan: %d",defPan);
defPan[i]=reader.readC();
if (flags&2) {
s->depth=DIV_SAMPLE_DEPTH_16BIT;
@ -1216,6 +1216,21 @@ bool DivEngine::loadIT(unsigned char* file, size_t len) {
}
if (hasIns) {
p->data[readRow][2]=ins[chan]-1;
if ((note[chan]<120 || ds.insLen==0) && ins[chan]>0) {
unsigned char targetPan=0;
if (ds.insLen==0) {
targetPan=defPan[(ins[chan]-1)&255];
} else {
targetPan=defPan[noteMap[(ins[chan]-1)&255][note[chan]]];
if (!(targetPan&128)) {
targetPan=defPanIns[(ins[chan]-1)&255]^0x80;
}
}
if (targetPan&128) {
p->data[readRow][effectCol[chan]++]=0x80;
p->data[readRow][effectCol[chan]++]=CLAMP((targetPan&127)<<2,0,255);
}
}
}
if (hasVol) {
if (vol[chan]<=64) {